Nouryon Chemicals International B.v.

Sca Hygiene Products Ab

Bo Andreasson

Arie Cornelis Besemer

Gunilla Himmelmann

Kent Malmgren

Carolyn Berland

Chatrine Stridfeldt

Ulla Forsgren Brusk

Per Anders Restorp

Anders Törncrona

Christina Nyholm

Dorine Lisa Van Brussel-Verraest

Ana López Cabezas

Malin From

Paula Martirez

Andreas Sundblom

Helena Bergenudd

Anne-Mieke Yvonne Wilhelmina Verwilligen

Anne-Mieke Verwilligen

Marcus Ruda

Anna Larsson-kron

Roel Wijtmans

Ana LÓPEZ Cabezas

Anna Larsson Kron

The disclosure relates to thermally expandable microspheres comprising a polymeric shell surrounding a blowing agent-containing hollow core, the polymer shell comprising a carboxylate-functionalised cellulose having a glass transition temperature (Tg) of at least about 125° C. The disclosure also relates to a method for preparing such thermally expandable microspheres, comprising mixing an aqueous phase that optionally comprises an emulsifier with an organic phase that comprises an organic solvent, a blowing agent and a carboxylate-functionalised cellulose having a Tg of at about least 125° C., to form a microsphere dispersion.

Thermally expandable cellulose-based microspheres

The invention relates to a process for the manufacture of thermally expandable thermoplastic microspheres. The process comprises, providing a mixture of monomeric materials suitable for polymerisation to form a thermoplastic polymer and at least one blowing agent, providing to the mixture a colloidal silica that is surface-modified with at least hydrophobic organosilane groups and forming an emulsion. A polymerisation is performed to form the thermally expandable thermoplastic microspheres. The invention further relates to thermally expandable thermoplastic micro spheres, expanded micro spheres and their use in the manufacture of products.

Thermally expandable thermoplastic microspheres and process for their preparation

The invention concerns the use of a fiber modified with functions capable of interacting with microbial cell wall proteins for immobilizing micro-organisms in hygiene products. Those functions are particularly capable of interacting with anionic groups and amine groups, and are especially cationic groups and aldehydes, respectively. The fibers may be synthetic or cellulosic. Also hygiene products containing these fibers are described.

Bacteria trapping fibrous material

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Sundsvall, Sweden

Bo Andreasson